In this master class we will discuss household sustainability as it relates to three important areas — environment, social and finance. Household environmental sustainability relates to decisions about utilities, transportation and food. For instance consuming beef has a carbon footprint 20 times that or fish. Do prices and behavioral nudges help save utility bills of water and electricity. Household social sustainability relates to income inequality, gender inequality, inter generational inequality and also health inequality. Finally household finance sustainability relates to consumer literacy, spending, savings, investing and decision making.